Philips 32PFL7695 - working but no standby light and non-functional remote and buttons - bad solder joint

The seller of this TV said that it would start and work properly when switched on via the main switch, but neither the remote nor the buttons at the TV had any effect. Also, the standby light wasn't illuminated and actions on the remote would not make it flicker.

The Philips support told her that a new main board was required. That was basically accurate, as we will see.

Now this did sound like a clear case of broken power supply of the control board, which links the remote sensor and the buttons.

A look inside. Lots of wiring. Good speakers!

This is the control board with the remote sensor. The left cable is coming from the buttons. The right cable goes to the main board.

Here we have the socket on the main board. Can you see how strangely imprecise it is mounted?

I shifted it a little bit and switched the TV on. It was working! The stand by light was red, the remote control did its job.

Aha! A look on the B-side of the main board revealed the problem. A production error with a terribly bad solder joint, which goes to ground. It took five years to finally break. And look at all that weird residue around it!

I reflowed everything, cleaned it up, tightened a number of totally loose screws of the power supply and the pretty little sucker was good to go :-)